Pokemon Mystery Dungeon: Explorers of Sky is Pretty much the Same as Pokemon Mystery Dungeon: Explorers of Darkness and Time. The only things different about Sky and Darkness/Time is that they just added a Few Updates and a Little more Ordered Events...they Added Shaymin...if you didn't notice that. So you might as well Find a Walkthrough for Pokemon Mystery Dungeon: Explorers of Time/Sky...

Well, if you meant that you have beaten Pokemon Mystery Dungeon: Explorers of Darkness/Time, then you should have no Problem in Beating Pokemon Mystery Dungeon: Explorers of Sky. I mean like, come on, it's based on Pokemon Myster Dungeon: Explorers of Darkness/Time. All they did was Add a few things to it. I'm doing a good job on Explorers of Sky so far...In like the Beginning.